I don't have a problem with porn whatsoever. Yes, it objectifies women. It also objectifies men. However, if I were to say I've never been out in public looking and admiring guy's asses or arms from a distance, I'd be lying. I did that even before ever looking at porn. People naturally objectify the sex they are attracted to at some level. Porn doesn't cause the objectification; the objectification in porn is a result of what already exists in humanity.
There is a serious problem with the lack of porn for women. I'm a woman and I quickly discovered that I hate most porn that has a woman in it at all for that reason. I much prefer gay porn.